Abstract: This invention is related to a pneumatic mechanical milking system (1) for a dairy animal that allows reducing, inhibiting, and/or preventing infection by mastitis, with fungicide, anti-bacteria, anti-virus, and microbicide surface properties, wherein the system comprises at least one device (2) that connects the animal udder (3), that defines a cylindrical shape (4), where the said device defines different openings at its corresponding ends, an upper opening (5) of a larger diameter through which end the dairy animal udder is introduced, a lower end (6) with a smaller diameter, comparable to the upper end through which milk is extracted, and a lower angular end (7) of small diameter, formed by an expanded tubular section (8) connecting the system air supply, wherein said device (2) entire surface has a rugosity quality within a specific range and it is formed by a special alloy containing at least 50% copper; at least one extended membrane (9) in the sense of its main axis, with an upper end (10) with a lip

Abstract: A wheel comprises a felloe or outer rim, a dish for attachment to a vehicle hub and several improved support blocks connecting the dish to the rim. The improved support blocks have a generally U-shaped profile which has one configuration in the central portion of the support block and a second configuration at its ends. The leg portions of the central profile are straight and joined to the base of the U by small radius curves. The leg and base portions of the end profile are gently curved and unfavorable stresses avoided.

Abstract: The end region of the fibre reinforced plastics hollow shaft (1) is clamped between an outer ring (3) and an inner ring (21) provided on the metal part (2) which is to be connected to the shaft. The two rings are clamped to the shaft wall and to one another so that there is a frictional connection between the shaft (1) and the metal part (2). The rings are clamped thermally by shrinking the rings on and into the shaft. This type of connection between a plastics shaft and a metal part is very simple and effective. (FIG. 1).